Rename "pathos" package to "path".

pkg/path/lib/path.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 /// A comprehensive, cross-platform path manipulation library.
 ///
 /// ## Installing ##
 ///
 /// Use [pub][] to install this package. Add the following to your
 /// `pubspec.yaml` file.
 ///
 ///     dependencies:
-///       pathos: any
+///       path: any
 ///
 /// Then run `pub install`.
 ///
-/// For more information, see the
-/// [pathos package on pub.dartlang.org][pkg].
+/// For more information, see the [path package on pub.dartlang.org][pkg].
 ///
 /// [pub]: http://pub.dartlang.org
-/// [pkg]: http://pub.dartlang.org/packages/pathos
+/// [pkg]: http://pub.dartlang.org/packages/path
 library path;
 
 import 'dart:mirrors';
 
 /// An internal builder for the current OS so we can provide a straight
 /// functional interface and not require users to create one.
 final _builder = new Builder();
 
 /**
  * Inserts [length] elements in front of the [list] and fills them with the
@@ skipping 1100 matching lines @@
     // doesn't count.
     if (lastDot <= 0) return [file, ''];
 
     return [file.substring(0, lastDot), file.substring(lastDot)];
   }
 
   _ParsedPath clone() => new _ParsedPath(
       style, root, isRootRelative,
       new List.from(parts), new List.from(separators));
 }